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No; 6I8,30l. v I Patenid Ian. 24, 1 99 A. w. TEBBELL.

CUTTER STOCK.

(Application filnd Oct. 19, 1898.)

(No Model.)

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ATsN'r AMOS \V. TERRELL, OF PATCHOGUE, NEWV YORK.

CUTTER-STOCK.

SPECIFICATION forming part of Letters Patent No. 618,301, dated January 24, 1899.

Application filed October 19, 1898. Serial No. 694,010. (No model.)

To all whont it may concern.-

Be it known that 1, Aims W. TERRELL, of Patchogue, in the county of Suffolk and State of New York, have invented a new and Improved Gutter-Stock, of which the following is a full, clear, and exact description.

The object of my invention is to provide a simple and durable cutter-stock adapted to be conveniently and securely applied to the cutter-heads of cylinders, planers, matching and molding machines, and machines of similar character.

A further object of the invention is to so construct a cutter-stock that it will hold or clamp a bit in such manner that said bit may be readily and expeditiously adjusted as it becomes worn.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improved cutter-stock, illustrating in dotted lines a bit about to be entered into said stock. Fig. 2 is a front elevation of the cutter-stock, the bit having been removed. Fig. 3 is a plan view of the cutter-stock. Fig. dis a longitudinal vertical section through the cutterstock. Fig. 5 is a perspective view of a bit adapted to be fitted into the cutter-stock, and Fig. 6 is a view showing the application of the invention.

The body portion of the cutter-stock consists of a foot, the sides 10 whereof are usually rounded, while the front and rear portions 11 are flattened. A shank 12 connects the foot of the body with a head 13. The shank is flattened at the front and at the rear, as shown in Figs. 1, 2, and 4, while the body is preferably cylindrical, especially that portion of the body that connects with the shank, and this portion of the body is provided with an exterior thread 14, which meets a thread 15 produced upon the side surfaces of the shank, which surfaces are rounded.

A jam-nut 16 is located upon the threaded surface 14 of the head of the stock, as shown particularly in Fig. 4:,and abore Bis made centrally in the body, extending through from top to bottom. This bore is of peculiar shape, as shown in Fig. 3, its central portion 17 being round, while in opposite sides of the central portion longitudinal grooves 18 are produced.

A slot B is longitudinally made in the head at the front, and this slot is 111'001111111111163- tion with the bore B, and the bottom Wall of said slot B is preferably tapered inwardly, as shown in Fig. 4. A threaded aperture 19 is made in the back portion of the head, which aperture leads into the bore at a point opposite the slot 13', and this threaded aperture is adapted to receive a thumb-screw 20, said thumb-screw 20 being adapted to hold the shank of the bit 0 employed in the body of the stock.

In Fig. 5 I have illustrated one of the bits 0. These bits'inay be centered or edge-bead bits, or the bits may be adapted for other purposes. Each of the bits comprises a blade 21 of suitable shape, which is located at an angle, preferably a right angle, to the shank 22, and upon the under face of the blade of the bit, where said blade connects with the bitshank, a tapering surface 21 is provided, adapted when the bit is in position in the cutter-stock to engage with the inclined bottom wall of the slot B in said stock. The shank 22 of the bit is of the same cross-sectional shape as the cross-sectional shape of the center bore B in the cutter-stock. The central portion 22 of the shank is circular, while a longitudinal rib 22 rectangular in cross-section, is formed at opposite sides of the circular section of the bit-shank. The shank of the bit is introduced into the bore B of the bit-stock, as shown in Fig. 1, and if the blade is new or has not been worn the inclined surface 21 of said blade is made to engage with the bottom wall of the slot B of the stock, the blade extending out from the stock through said slot.

bit firmly in position within the stock.

The stock is attached to the cutter-head of the cylinder of the machine through the D16- dium of the foot and the connected shank 12, the said cutter-head having suitable openings prepared therein to receive these portions of the stock. lVhen the stock is in position in the cutter-head of the cylinder, the jam-nut The set-screw 20 is then tightened up against the shank of the bit, holding said 16 is screwed down until it engages with the said cylinder, holdingthe stock firmly in position. It is evident that as the bit wears away it can be withdrawn from the stock as far as may be required to meet the sweepof the planer-knives that may be employed on the machine, and the bit can be firmly held in its adjusted position by the set-screw 20.

Fig. 6 shows the cutter-stock mounted on the head and illustrates the manner'of using the invention, and particularly the action of the foot, shank, and jam-nut.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A bit-stock, the body of which is provided with a central bore extending through from end to end, said body comprising a foot, a head, a shank connecting the foot with the head, the shank and adjacent portion of the head being threaded, the body being also provided with a jam-nut located at its threaded surface, a slot formed in the head, extending into the bore, and a set-screw located in the head opposite the slot, also extending into the said bore, as and for the purpose specified.

2. In a bit-stock, the combination, with a body provided with a circular bore extending through from end to end, the said bore being provided with longitudinal opposing grooves, said body comprising a foot-section, a headsection, and a shank-section connecting the head and foot sections, the shank-section being exteriorly threaded and likewise a portion of the head-section adjacent to the shanksection, the head-section being provided with a set-screw and a slot opposite the set-screw,

produced longitudinally in the head and communicating with said bore, of a jam-nut located upon the threaded portion of the head, for the purpose specified.

3. In a bit-stock, the combination, with a body provided with a circular bore extending through from end to end, said bore being provided with longitudinal opposing grooves,

. municating with saidbore, of a jam-nut locatcd upon the threaded portion of the head,

and a bit comprising a blade adapted to extend out through the slot in said head, and a shank at an angle to the blade, the cross-sectional shape of the shank corresponding tov the cross-sectional shape of. the bore in the body of the stock, for the purpose set forth.

4. A cutter-stock, having a foot, a shank in connection with the foot, a head in connection with the shank, a jam-nut working on the head, the head having a longitudinallyextending bore made therein, and means working in the head and serving to hold the cutter in the bore thereof.

AMOS \V. TERRELL. Vitnesses:

EDWIN BAILEY, J12, JOHN M. PRICE. 

